Spark-gap mechanism.



3.5/1. SWEENEY.

SPARK GAP MECHANISM.

APPLICATION FILED JULYIQ, m5.

Pafented Feb. 29,1916.

m'mswa WITNESSES.-

P. ATEN DANIEL M. SWEE NEY, OF SAN FRANCISCO, CALIFORNIA.

SPARK-GAP MECHANISM.

, contact is completed through a conducting ing wire, H, Fig.

arm or support removably attached at-one end to an igniting mechanism and attachedat the other end at right angles to a tube or chamber comprising the spark-gap of a high-tension electric circuit.

My invention is illustrated in the accompanying drawing, in which- Figure l is a vertical section of the entire mechanism; Fig. 2, a top view, and.

Fig. 3, a side view in perspective showing its attachment to an igniting mechanism or spark plug.

Similar letters refer to similar parts throughout the several views. g

A. represents a vertical central screw of metal or other suitable conducting material pointed at the lower end.

D is an insulating nut into which A is threaded.

C is a lock-nut for securing A and preventing'it from turning in D.

B is a clamping nut, preferably milled on its upper edge, for clamping a conduct- 3, in contact with C.

I Specification of Letters Patent. PatgntedFeb, 2'39, 333 15;,

Application filed July 19, 1915. Serial No. 40,753.

E represents a hollow cylindrical chamher. into which the upper end of the insulating nut, D is screwed. To the lower closed end of E, and extending from it substantially at right angles to its axis, is attached the conducting arm, F, having a perforation, G. At the center of the bottom of E is an internal upwardly projecting point, L, through which the electric spark passes to the point of the screw, A.

The entire mechanism is attached to the fixed spark plug. K, by means of the screw, 1, and nut, J.

- What I claim asmy invention and desire to secure by Letters Patent of the United States is- 1.111 a spark mechanism a vertical conducting screw, adjustably secured in an in sulating nut and pointed at the inner end, in combination with a conducting cylindrical chamber and a conducting arm substan tially at right angles to the axis of said chamber, substantially as herein set forth.

2. In a spark mechanism a vertical conducting screw adjustably secured in an in sulating nut co-axially with a conducting cylindrical chamber, the screw and bottom of the chamber being provided with points for the transmission of an electric dis charge, substantially as set forth.

Witnesses C. J. REED, P. J. SWEENEY. 

